摘要:
A system for re-starting an air separation plant after an interruption in operation wherein descending liquid is collected in a non-operating distillation column and passed back to the separation section of that column before or upon re-start. The invention may employ a collection device situated in the column above the sump. Upon interruption in operation, the collection device accumulates descending liquid. From the collection device, liquid may be passed outside of the column and transferred to a holding vessel to re-inventory internal material of the column upon resumption in operation.
摘要:
A cryogenic rectification system employing two rectifying sections in parallel within either the lower pressure column of a double column or in a side column, for producing product oxygen at both low and high purity.
摘要:
A process and system for purifying an impure gas to produce a purified gas in a gas purification system and protecting the system from damage by a) passing a portion of a first gas stream into a reactor vessel, which exits as a second purified gas stream; b) combining a portion of the second purified gas stream with another portion of the first gas stream to form a combined gas stream; and c) passing the combined gas stream into a sensing device to regulate the flow of the first and second gas streams into the reactor vessel.
摘要:
A method and apparatus in which air is liquefied and stored for later energy recovery during which the liquid air is pumped to high pressure, heated and then expanded to recover the energy. During the recovery of energy, the pumped liquid air is heated within a regenerator that stores the refrigeration within the liquid air. During the liquefaction of the air, part of the refrigeration required is obtained from the refrigeration stored in the regenerator.
摘要:
A heat exchange system and processes for a magnetic annealing tool is provided. The system includes a process chamber housing workpieces to be processed; an element chamber partly surrounding the periphery of the process chamber, at least one means for drawing a vacuum in fluid communication with the process chamber and separately with the element chamber in order to apply a vacuum to either or both of the process and element chamber so as to promote radiation heating of the workpieces; at least one supply of fluid in communication with the process chamber and separately with the element chamber to supply a cooling gas so as to promote conductive cooling of the workpieces; a cooling chamber disposed to surround the element chamber; and means for generating a magnetic field disposed on the outer periphery of the cooling chamber.
摘要:
A process and system for purifying an impure gas to produce a purified gas in a gas purification system and protecting the system from damage by a) passing a portion of a first gas stream into a reactor vessel, which exits as a second purified gas stream; b) combining a portion of the second purified gas stream with another portion of the first gas stream to form a combined gas stream; and c) passing the combined gas stream into a sensing device to regulate the flow of the first and second gas streams into the reactor vessel.
摘要:
A system and method for solvent recovery in a batch fluidized bed process is provided. The disclosed embodiment of the fluidized bed system includes a fluidized bed vessel adapted to contain a batch of solvent-containing product; an influent or intake circuit adapted to supply an inert fluidizing gas to the fluidized bed vessel; an effluent circuit adapted to remove the solvent containing inert fluidizing gas from the fluidized bed vessel; a first recycle circuit coupling the effluent circuit to a solvent recovery means; a second recycle circuit directly coupling the effluent circuit to the intake circuit and a flow control valve operatively disposed to divide the effluent between the first recycle circuit and the second recycle circuit based on the operating regime of the fluidized bed process. The disclosed embodiments further include a source of liquid nitrogen coupled to the second recycle circuit to provide the make-up inert gas as well as provide enhanced cooling of the effluent based on the operating regime of the fluidized bed process.
摘要:
A process (and corresponding system) for separating a high purity gas (e.g. oxygen) from a feed gas stream (e.g. air) that includes heating the feed gas stream before passing the heated feed gas stream through a ceramic membrane to separate a gas component from the other components of the gas stream.
摘要:
A system for producing carbon monoxide wherein a carbon monoxide containing feed stream is processed in a membrane separation unit for partial removal of carbon dioxide, cooled to complete the removal of carbon dioxide, and then processed in a cryogenic separation system comprising a first cryogenic separation column and a second cryogenic separation column for the production of product carbon monoxide.
摘要:
A cryogenic air separation system wherein separation inefficiencies resulting from feed air flow disturbances due to discontinuous prepurifier operation are reduced or eliminated by inhibiting column liquid drainage during such disturbances using mesh packing having interspacial regions which hold up the liquid during the disturbances using surface tension.